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Chris Sewell
212
lib/symfony/addon/creole/database/sfCreoleDatabase.class.php
Executable file
212
lib/symfony/addon/creole/database/sfCreoleDatabase.class.php
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<?php
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/*
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* This file is part of the symfony package.
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* (c) 2004-2006 Fabien Potencier <fabien.potencier@symfony-project.com>
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* (c) 2004-2006 Sean Kerr.
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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/**
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* sfCreoleDatabase provides connectivity for the Creole database abstraction
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* layer.
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*
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* <b>Optional parameters:</b>
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*
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* # <b>classpath</b> - [none] - An absolute filesystem path to the main
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* Creole class file.
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* # <b>database</b> - [none] - The database name.
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* # <b>dsn</b> - [none] - The DSN formatted connection string.
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* # <b>host</b> - [none] - The database host specifications.
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* # <b>port</b> - [none] - The database port.
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* # <b>encoding</b> - [none] - The database encoding.
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* # <b>method</b> - [normal] - How to read connection parameters.
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* Possible values are dsn, normal,
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* server, and env. The dsn method reads
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* them from the dsn parameter. The
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* normal method reads them from the
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* specified values. server reads them
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* from $_SERVER where the keys to
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* retrieve the values are what you
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* specify the value as in the settings.
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* env reads them from $_ENV and works
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* like $_SERVER.
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* # <b>no_assoc_lower</b> - [Off] - Turn off portabilty of resultset
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* field names.
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* # <b>password</b> - [none] - The database password.
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* # <b>persistent</b> - [No] - Indicates that the connection should
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* persistent.
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* # <b>phptype</b> - [none] - The type of database (mysql, pgsql,
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* etc).
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* # <b>username</b> - [none] - The database username.
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*
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* @package symfony
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* @subpackage database
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* @author Fabien Potencier <fabien.potencier@symfony-project.com>
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* @author Sean Kerr <skerr@mojavi.org>
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* @version SVN: $Id: sfCreoleDatabase.class.php 3329 2007-01-23 08:29:34Z fabien $
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*/
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class sfCreoleDatabase extends sfDatabase
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{
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/**
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* Connect to the database.
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*
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* @throws <b>sfDatabaseException</b> If a connection could not be created.
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*/
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public function connect()
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{
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try
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{
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// determine how to get our settings
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$method = $this->getParameter('method', 'normal');
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switch ($method)
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{
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case 'normal':
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// get parameters normally, and all are required
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$database = $this->getParameter('database', null);
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$hostspec = $this->getParameter('hostspec') ? $this->getParameter('hostspec') : ($this->getParameter('host') ? $this->getParameter('hostspec') : null);
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$password = $this->getParameter('password', null);
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$phptype = $this->getParameter('phptype', null);
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$username = $this->getParameter('username', null);
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$port = $this->getParameter('port', null);
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$encoding = $this->getParameter('encoding', null);
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$dsn = array('database' => $database,
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'hostspec' => $hostspec,
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'password' => $password,
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'phptype' => $phptype,
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'username' => $username,
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'port' => $port,
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'encoding' => $encoding);
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break;
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case 'dsn':
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$dsn = $this->getParameter('dsn');
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if ($dsn == null)
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{
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// missing required dsn parameter
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$error = 'Database configuration specifies method "dsn", but is missing dsn parameter';
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throw new sfDatabaseException($error);
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}
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break;
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case 'server':
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// construct a DSN connection string from existing $_SERVER values
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$dsn =& $this->loadDSN($_SERVER);
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break;
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case 'env':
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// construct a DSN connection string from existing $_ENV values
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$dsn =& $this->loadDSN($_ENV);
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break;
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default:
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// who knows what the user wants...
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$error = 'Invalid CreoleDatabase parameter retrieval method "%s"';
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$error = sprintf($error, $method);
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throw new sfDatabaseException($error);
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}
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// get creole class path
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$classPath = $this->getParameter('classpath');
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// include the creole file
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if ($classPath == null)
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{
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require_once('creole/Creole.php');
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}
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else
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{
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require_once($classPath);
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}
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// set our flags
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$noAssocLower = $this->getParameter('no_assoc_lower', false);
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$persistent = $this->getParameter('persistent', false);
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$compatAssocLower = $this->getParameter('compat_assoc_lower', false);
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$compatRtrimString = $this->getParameter('compat_rtrim_string', false);
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$flags = 0;
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$flags |= ($noAssocLower) ? Creole::NO_ASSOC_LOWER : 0;
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$flags |= ($persistent) ? Creole::PERSISTENT : 0;
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$flags |= ($compatAssocLower) ? Creole::COMPAT_ASSOC_LOWER : 0;
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$flags |= ($compatRtrimString) ? Creole::COMPAT_RTRIM_STRING : 0;
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// do the duuuurtay work, right thurr
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if ($flags > 0)
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{
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$this->connection = Creole::getConnection($dsn, $flags);
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}
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else
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{
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$this->connection = Creole::getConnection($dsn);
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}
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// get our resource
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$this->resource = $this->connection->getResource();
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}
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catch (SQLException $e)
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{
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// the connection's foobar'd
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throw new sfDatabaseException($e->toString());
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}
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}
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/**
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* Load a DSN connection string from an existing array.
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*
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* @return array An associative array of connection parameters.
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*/
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protected function & loadDSN(&$array)
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{
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// determine if a dsn is set, otherwise use separate parameters
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$dsn = $this->getParameter('dsn');
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if ($dsn == null)
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{
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// list of available parameters
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$available = array('database', 'hostspec', 'password', 'phptype', 'username', 'port');
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$dsn = array();
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// yes, i know variable variables are ugly, but let's avoid using
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// an array for array's sake in this single spot in the source
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foreach ($available as $parameter)
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{
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$$parameter = $this->getParameter($parameter);
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$dsn[$parameter] = ($$parameter != null) ? $array[$$parameter] : null;
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}
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}
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else
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{
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$dsn = $array[$dsn];
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}
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return $dsn;
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}
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/**
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* Execute the shutdown procedure.
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*
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* @return void
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*
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* @throws <b>sfDatabaseException</b> If an error occurs while shutting down this database.
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*/
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public function shutdown()
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{
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if ($this->connection !== null)
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{
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@$this->connection->close();
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}
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}
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}
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